UK Risk Register Details for Helicotylenchus dihystera

This record was last updated on 04/06/2020

Common Names

  • Nematode, common spiral
  • Spiral nematode
  • Steiners spiral nematode

Scenario and Pathways

Scenario for Risk Register

  • show / hide
  • Pest is introduced

Pathway Assessed for Entry to UK

  • show / hide
  • Plants for planting (with soil)

Common Pathways

  • show / hide
This section is currently being developed as part of the next phase of the Risk Register.

Risk Ratings and Current Mitigations

Unmitigated Risks

Likelihood [1 - 5] 3
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 9
UK Relative Risk Rating [1 - 125] 36

Current Mitigations

  • show / hide

Key mitigation for pest

Prohibition of key pathway (soil)

Regulation

Surveillance

Industry Scheme

Contingency Plan

Awareness

Research

Mitigated Risks

Likelihood [1 - 5] 2
Spread [1 - 5] 1
Impact [1 - 5] 3
Value at Risk [1 - 5] 4
Likelihood x Impact [1 - 25] 6
UK Relative Risk Rating [1 - 125] 24

Proposed Actions

Proposed Actions

Regulation

Deregulation

Management By Industry

Targeted Survey

PRA

Contingency Plan

Publicity

Research

Distribution and Pest Details

Distribution

Country Status Notes
Europe
United Kingdom Absent
Cyprus Present
Czech Republic Present
Germany Present
Italy Present
Moldova Present
Poland Present
Portugal Present
Romania Present
Slovakia Present
Slovenia Present
Spain Present
Turkey Present
Ukraine Present
North America
Canada Present
Mexico Present
United States Present
South America
Bolivia Present
Brazil Present
Chile Present
Colombia Present
French Guiana Present
Peru Present
Venezuela Present
Oceania
Australia Present
Fiji Present
New Zealand Present
Papua New Guinea Present
Samoa Present
Solomon Islands Present
Tonga Present
Africa
Angola Present
Benin Present
Burkina Faso Present
Burundi Present
Cameroon Present
Congo (Democratic Rep.) Present
Cote d'Ivoire Present
Egypt Present
Ethiopia Present
Gambia Present
Ghana Present
Guinea Present
Kenya Present
Liberia Present
Madagascar Present
Malawi Present
Mauritius Present
Morocco Present
Mozambique Present
Nigeria Present
Reunion Present
Rwanda Present
Senegal Present
South Africa Present
Sudan Present
Tanzania Present
Togo Present
Zambia Present
Zimbabwe Present
Asia
Bangladesh Present
Bhutan Present
Brunei Present
China Present
Georgia Present
India Present
Indonesia Present
Iran Present
Iraq Present
Israel Present
Japan Present
Kazakhstan Present
Kyrgyzstan Present
Malaysia Present
Nepal Present
North Korea Present
Pakistan Present
Philippines Present
Russia Present
Saudi Arabia Present
Singapore Present
South Korea Present
Sri Lanka Present
Taiwan Present
Thailand Present
Uzbekistan Present
Vietnam Present
Central America
Barbados Present
Belize Present
Costa Rica Present
Cuba Present
Dominica Present
El Salvador Present
Grenada Present
Guadeloupe Present
Guatemala Present
Jamaica Present
Martinique Present
Panama Present
Puerto Rico Present
Saint Kitts and Nevis Present
Saint Lucia Present
Saint Vincent and the Grenadines Present
Trinidad and Tobago Present

Type of Pest

  • Nematode (Tylenchida)

Host or Industry at Risk

  • show / hide

Total protected cultivation

Major Hosts

  • Abelmoschus esculentus (L.) Moench
  • Agrostis tenuis Sibth.
  • Allium cepa L.
  • Allium chinense G.Don
  • Allium schoenoprasum L.
  • Anacardium occidentale L.
  • Apium graveolens L.
  • Arachis hypogaea L.
  • Avena sativa L.
  • Begonia L.
  • Beta vulgaris L.
  • Brassica L.
  • Buxus sempervirens var. sempervirens L.
  • Cajanus cajan (L.) Millsp./Huth
  • Camellia sinensis (L.) O.Kuntze
  • Capsicum annuum L.
  • Carica papaya L.
  • Chamaecyparis Spach
  • Cocos nucifera L.
  • Colocasia esculenta var. esculenta (L.) Schott
  • Cucumis sativus L.
  • Cucurbita moschata Duch. Ex Poir.
  • Cucurbita pepo L.
  • Cynodon dactylon (L.) Pers.
  • Datura L.
  • Daucus carota L.
  • Dioscorea L.
  • Dolichos lablab L.
  • Elaeis guineensis Jacq.
  • Eustoma grandiflorum (Raf.) Shinners
  • Ficus benjamina L.
  • Ficus elastica Roxb. Ex Hornem.
  • Fragaria ananassa (F. x ananassa) Duch.
  • Gardenia Ellis
  • Glycine max (L.) Merr.
  • Helianthus annuus L.
  • Hevea brasiliensis (Willd. Ex A.Juss.) Muell.Arg.
  • Hibiscus L.
  • Hordeum vulgare L. em. Lam.
  • Humulus lupulus L.
  • Ilex cornuta Lindl. & Paxt.
  • Ilex crenata Thunb.
  • Impatiens L.
  • Ipomoea batatas (L.) Poir./Lam.
  • Jasminum sambac (Linnaeus) Aiton
  • Juglans
  • Lactuca sativa L.
  • Lolium L.
  • Solanum lycopersicum L.
  • Macadamia tetraphylla L.Johnson
  • Malus Mill.
  • Manihot esculenta Crantz
  • Medicago sativa L.
  • Mimosa pudica L.
  • Miscanthus floridulus (Labill.) Warb. Ex K.Schum. & Lauterb.
  • Momordica charantia L.
  • Musa L.
  • Nicotiana tabacum L.
  • Olea europaea Linnaeus
  • Passiflora edulis Sims
  • Pelargonium graveolens L'Herit. Ex Ait.
  • Persea americana Mill.
  • Petunia Juss.
  • Phaseolus mungo L.
  • Phaseolus vulgaris L.
  • Phoenix dactylifera L.
  • Pinus caribaea Morelet
  • Pinus elliottii Engelm.
  • Pisum sativum Linnaeus
  • Prunus L.
  • Prunus domestica ssp. domestica L.
  • Prunus dulcis (Mill.) D.A.Webb
  • Prunus persica Batsch
  • Pyrus communis L.
  • Pyrus pyraster Burgsd.
  • Raphanus sativus Linnaeus
  • Rosa multiflora Thunb. Ex Murr.
  • Rubus idaeus L.
  • Saccharum officinarum L.
  • Solanum melongena L.
  • Solanum torvum Swartz
  • Solanum tuberosum L.
  • Sorghum halepense (Linnaeus) Persoon.
  • Sorghum vulgare Pers.
  • Spinacia oleracea L.
  • Syzygium aromaticum (L.) Merr. & L.M.Perry
  • Syzygium malaccense (L.) Merr. & Perry
  • Tectona grandis L.
  • Trifolium L.
  • Triticum aestivum L.
  • Urena lobata L.
  • Vaccinium L.
  • Vanilla planifolia Jackson
  • Vigna unguiculata (Linnaeus) Walpers
  • Vitis vinifera ssp. vinifera L.
  • Washingtonia H.Wendl.
  • Wisteria Nutt.
  • Zea mays L.
  • Zingiber officinale Roscoe
  • Citrus
  • Gossypium hirsutum
  • Fragaria vesca

Threats to Protected Cultivation

  • Only protected crops

Forest Tree Pests and Pathogens

Further Information

PRA Availability

UK (2012)

Regulation and EPPO listing

  • show / hide

Not currently listed

Actions Indicated

  • show / hide

Action

No current Actions Indicated

General Comments

Nematode pest unlikely to be very damaging in its own right, but used as a an indicator species to assess compliance of soil requirements of imported plants.

Risk Records for this Pest